McGraw-Hill, 1996
Buku Teks
Rodgers, M.E., author
Blackstone Press Limited, 1998
Buku Referensi
Shanker Ganesan, editor
Edward Elgar, 2012
Buku Teks
edited by Shalom Lappin
Blackwell, 1996
Buku Teks
Harwell, Joan M., author
Jossey-Bass, 2001
Buku Teks